This is the board ONLY that you will need to assemble yourself with the needed parts

Photo is of an assembled unit

Includes:

• the main board with the pre-assembled ATmega2560 (no SMT soldering necessary)
• the DC/DC module board
• a suitable micro USB socket,
• https://8bit-museum.de/sonstiges/hardware-projekte... for details and information
• There is a large bundle of documentation. Including a detailed BOM, shopping carts for various distributors, sample code for your own experiments, etc.). Here is an overview of the required components in advance. All components are easy to get. The BOM also contains replacement types for the critical components (relays, transistors, Zener diodes). All of these components cost between 40-60 EUR in total.

BOM:

• Capacitors: 100uF, 22pF, 100nF, 470nF, 220nF
• Sockets: ZIF32, some socket header for Display, DC/DC Modul, pin header for ISP
• Resistors: 1k0, 470, 4k7, 10k, 4.7, 220, 1M
• Zener: 5V1 1W, 1N4733 (or similar, replacement types available)
• Rectifier: 1N5817
• ICs: ULN2003A
• Power regulators: L7805, 1A
• Crystal: 16MHz
• Polyfuse: 1.1A
• Buttons: 6mm
• Buzzer: passive
• Optional: Barrel Jackand/or USB and/or USB-B
• Potentiometer: 10k, 1k0
• Relais: G6K-2P 5V (or similar, replacement types available)
• Mosfets: IRF5305P (or similar, replacement types available)
• Transistors: MPSA56, MPSA06, BC547C
• Display: Standard LCD2004 („Arduino like“)